TSTP Solution File: SEU090+1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SEU090+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n003.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Tue Sep 20 07:27:28 EDT 2022

% Result   : Theorem 0.19s 0.41s
% Output   : Proof 0.19s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : SEU090+1 : TPTP v8.1.0. Released v3.2.0.
% 0.06/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.12/0.34  % Computer : n003.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 300
% 0.12/0.34  % DateTime : Sat Sep  3 09:23:10 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.12/0.34  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.12/0.34  Usage: tptp [options] [-file:]file
% 0.12/0.34    -h, -?       prints this message.
% 0.12/0.34    -smt2        print SMT-LIB2 benchmark.
% 0.12/0.34    -m, -model   generate model.
% 0.12/0.34    -p, -proof   generate proof.
% 0.12/0.34    -c, -core    generate unsat core of named formulas.
% 0.12/0.34    -st, -statistics display statistics.
% 0.12/0.34    -t:timeout   set timeout (in second).
% 0.12/0.34    -smt2status  display status in smt2 format instead of SZS.
% 0.12/0.34    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.12/0.34    -<param>:<value> configuration parameter and value.
% 0.12/0.34    -o:<output-file> file to place output in.
% 0.19/0.41  % SZS status Theorem
% 0.19/0.41  % SZS output start Proof
% 0.19/0.41  tff(finite_type, type, (
% 0.19/0.41     finite: $i > $o)).
% 0.19/0.41  tff(cartesian_product2_type, type, (
% 0.19/0.41     cartesian_product2: ( $i * $i ) > $i)).
% 0.19/0.41  tff(tptp_fun_D_26_type, type, (
% 0.19/0.41     tptp_fun_D_26: $i)).
% 0.19/0.41  tff(cartesian_product3_type, type, (
% 0.19/0.41     cartesian_product3: ( $i * $i * $i ) > $i)).
% 0.19/0.41  tff(tptp_fun_C_27_type, type, (
% 0.19/0.41     tptp_fun_C_27: $i)).
% 0.19/0.41  tff(tptp_fun_B_28_type, type, (
% 0.19/0.41     tptp_fun_B_28: $i)).
% 0.19/0.41  tff(tptp_fun_A_29_type, type, (
% 0.19/0.41     tptp_fun_A_29: $i)).
% 0.19/0.41  tff(cartesian_product4_type, type, (
% 0.19/0.41     cartesian_product4: ( $i * $i * $i * $i ) > $i)).
% 0.19/0.41  tff(1,plain,
% 0.19/0.41      (^[A: $i, B: $i, C: $i, D: $i] : refl((cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D)) <=> (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D)))),
% 0.19/0.41      inference(bind,[status(th)],[])).
% 0.19/0.41  tff(2,plain,
% 0.19/0.41      (![A: $i, B: $i, C: $i, D: $i] : (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D)) <=> ![A: $i, B: $i, C: $i, D: $i] : (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D))),
% 0.19/0.41      inference(quant_intro,[status(thm)],[1])).
% 0.19/0.41  tff(3,plain,
% 0.19/0.41      (![A: $i, B: $i, C: $i, D: $i] : (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D)) <=> ![A: $i, B: $i, C: $i, D: $i] : (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D))),
% 0.19/0.41      inference(rewrite,[status(thm)],[])).
% 0.19/0.41  tff(4,axiom,(![A: $i, B: $i, C: $i, D: $i] : (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D))), file('/export/starexec/sandbox/benchmark/theBenchmark.p','d4_zfmisc_1')).
% 0.19/0.41  tff(5,plain,
% 0.19/0.41      (![A: $i, B: $i, C: $i, D: $i] : (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[4, 3])).
% 0.19/0.41  tff(6,plain,(
% 0.19/0.41      ![A: $i, B: $i, C: $i, D: $i] : (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D))),
% 0.19/0.41      inference(skolemize,[status(sab)],[5])).
% 0.19/0.41  tff(7,plain,
% 0.19/0.41      (![A: $i, B: $i, C: $i, D: $i] : (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[6, 2])).
% 0.19/0.41  tff(8,plain,
% 0.19/0.41      ((~![A: $i, B: $i, C: $i, D: $i] : (cartesian_product4(A, B, C, D) = cartesian_product2(cartesian_product3(A, B, C), D))) | (cartesian_product4(A!29, B!28, C!27, D!26) = cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26))),
% 0.19/0.41      inference(quant_inst,[status(thm)],[])).
% 0.19/0.41  tff(9,plain,
% 0.19/0.41      (cartesian_product4(A!29, B!28, C!27, D!26) = cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)),
% 0.19/0.41      inference(unit_resolution,[status(thm)],[8, 7])).
% 0.19/0.41  tff(10,plain,
% 0.19/0.41      (cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26) = cartesian_product4(A!29, B!28, C!27, D!26)),
% 0.19/0.41      inference(symmetry,[status(thm)],[9])).
% 0.19/0.41  tff(11,plain,
% 0.19/0.41      (finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) <=> finite(cartesian_product4(A!29, B!28, C!27, D!26))),
% 0.19/0.41      inference(monotonicity,[status(thm)],[10])).
% 0.19/0.41  tff(12,plain,
% 0.19/0.41      (finite(cartesian_product4(A!29, B!28, C!27, D!26)) <=> finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26))),
% 0.19/0.41      inference(symmetry,[status(thm)],[11])).
% 0.19/0.41  tff(13,plain,
% 0.19/0.41      ((~finite(cartesian_product4(A!29, B!28, C!27, D!26))) <=> (~finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)))),
% 0.19/0.41      inference(monotonicity,[status(thm)],[12])).
% 0.19/0.41  tff(14,plain,
% 0.19/0.41      ((~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D))))) <=> (~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D)))))),
% 0.19/0.41      inference(rewrite,[status(thm)],[])).
% 0.19/0.41  tff(15,plain,
% 0.19/0.41      ((~![A: $i, B: $i, C: $i, D: $i] : ((((finite(A) & finite(B)) & finite(C)) & finite(D)) => finite(cartesian_product4(A, B, C, D)))) <=> (~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D)))))),
% 0.19/0.41      inference(rewrite,[status(thm)],[])).
% 0.19/0.41  tff(16,axiom,(~![A: $i, B: $i, C: $i, D: $i] : ((((finite(A) & finite(B)) & finite(C)) & finite(D)) => finite(cartesian_product4(A, B, C, D)))), file('/export/starexec/sandbox/benchmark/theBenchmark.p','t21_finset_1')).
% 0.19/0.41  tff(17,plain,
% 0.19/0.41      (~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[16, 15])).
% 0.19/0.41  tff(18,plain,
% 0.19/0.41      (~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[17, 14])).
% 0.19/0.41  tff(19,plain,
% 0.19/0.41      (~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[18, 14])).
% 0.19/0.41  tff(20,plain,
% 0.19/0.41      (~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[19, 14])).
% 0.19/0.41  tff(21,plain,
% 0.19/0.41      (~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[20, 14])).
% 0.19/0.41  tff(22,plain,
% 0.19/0.41      (~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[21, 14])).
% 0.19/0.41  tff(23,plain,
% 0.19/0.41      (~![A: $i, B: $i, C: $i, D: $i] : (finite(cartesian_product4(A, B, C, D)) | (~(finite(A) & finite(B) & finite(C) & finite(D))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[22, 14])).
% 0.19/0.41  tff(24,plain,(
% 0.19/0.41      ~(finite(cartesian_product4(A!29, B!28, C!27, D!26)) | (~(finite(A!29) & finite(B!28) & finite(C!27) & finite(D!26))))),
% 0.19/0.41      inference(skolemize,[status(sab)],[23])).
% 0.19/0.41  tff(25,plain,
% 0.19/0.41      (~finite(cartesian_product4(A!29, B!28, C!27, D!26))),
% 0.19/0.41      inference(or_elim,[status(thm)],[24])).
% 0.19/0.41  tff(26,plain,
% 0.19/0.41      (~finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[25, 13])).
% 0.19/0.41  tff(27,plain,
% 0.19/0.41      (finite(A!29) & finite(B!28) & finite(C!27) & finite(D!26)),
% 0.19/0.41      inference(or_elim,[status(thm)],[24])).
% 0.19/0.41  tff(28,plain,
% 0.19/0.41      (finite(C!27)),
% 0.19/0.41      inference(and_elim,[status(thm)],[27])).
% 0.19/0.41  tff(29,plain,
% 0.19/0.41      (finite(B!28)),
% 0.19/0.41      inference(and_elim,[status(thm)],[27])).
% 0.19/0.41  tff(30,plain,
% 0.19/0.41      (finite(A!29)),
% 0.19/0.41      inference(and_elim,[status(thm)],[27])).
% 0.19/0.41  tff(31,plain,
% 0.19/0.41      (^[A: $i, B: $i, C: $i] : refl((finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A))) <=> (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A))))),
% 0.19/0.41      inference(bind,[status(th)],[])).
% 0.19/0.41  tff(32,plain,
% 0.19/0.41      (![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A))) <=> ![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))),
% 0.19/0.41      inference(quant_intro,[status(thm)],[31])).
% 0.19/0.41  tff(33,plain,
% 0.19/0.41      (^[A: $i, B: $i, C: $i] : trans(monotonicity(trans(monotonicity(rewrite((finite(A) & finite(B) & finite(C)) <=> (~((~finite(C)) | (~finite(B)) | (~finite(A))))), ((~(finite(A) & finite(B) & finite(C))) <=> (~(~((~finite(C)) | (~finite(B)) | (~finite(A))))))), rewrite((~(~((~finite(C)) | (~finite(B)) | (~finite(A))))) <=> ((~finite(C)) | (~finite(B)) | (~finite(A)))), ((~(finite(A) & finite(B) & finite(C))) <=> ((~finite(C)) | (~finite(B)) | (~finite(A))))), ((finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C)))) <=> (finite(cartesian_product3(A, B, C)) | ((~finite(C)) | (~finite(B)) | (~finite(A)))))), rewrite((finite(cartesian_product3(A, B, C)) | ((~finite(C)) | (~finite(B)) | (~finite(A)))) <=> (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))), ((finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C)))) <=> (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))))),
% 0.19/0.41      inference(bind,[status(th)],[])).
% 0.19/0.41  tff(34,plain,
% 0.19/0.41      (![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C)))) <=> ![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))),
% 0.19/0.42      inference(quant_intro,[status(thm)],[33])).
% 0.19/0.42  tff(35,plain,
% 0.19/0.42      (![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C)))) <=> ![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C))))),
% 0.19/0.42      inference(rewrite,[status(thm)],[])).
% 0.19/0.42  tff(36,plain,
% 0.19/0.42      (^[A: $i, B: $i, C: $i] : trans(monotonicity(rewrite(((finite(A) & finite(B)) & finite(C)) <=> (finite(A) & finite(B) & finite(C))), ((((finite(A) & finite(B)) & finite(C)) => finite(cartesian_product3(A, B, C))) <=> ((finite(A) & finite(B) & finite(C)) => finite(cartesian_product3(A, B, C))))), rewrite(((finite(A) & finite(B) & finite(C)) => finite(cartesian_product3(A, B, C))) <=> (finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C))))), ((((finite(A) & finite(B)) & finite(C)) => finite(cartesian_product3(A, B, C))) <=> (finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C))))))),
% 0.19/0.42      inference(bind,[status(th)],[])).
% 0.19/0.42  tff(37,plain,
% 0.19/0.42      (![A: $i, B: $i, C: $i] : (((finite(A) & finite(B)) & finite(C)) => finite(cartesian_product3(A, B, C))) <=> ![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C))))),
% 0.19/0.42      inference(quant_intro,[status(thm)],[36])).
% 0.19/0.42  tff(38,axiom,(![A: $i, B: $i, C: $i] : (((finite(A) & finite(B)) & finite(C)) => finite(cartesian_product3(A, B, C)))), file('/export/starexec/sandbox/benchmark/theBenchmark.p','fc15_finset_1')).
% 0.19/0.42  tff(39,plain,
% 0.19/0.42      (![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C))))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[38, 37])).
% 0.19/0.42  tff(40,plain,
% 0.19/0.42      (![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C))))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[39, 35])).
% 0.19/0.42  tff(41,plain,(
% 0.19/0.42      ![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~(finite(A) & finite(B) & finite(C))))),
% 0.19/0.42      inference(skolemize,[status(sab)],[40])).
% 0.19/0.42  tff(42,plain,
% 0.19/0.42      (![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[41, 34])).
% 0.19/0.42  tff(43,plain,
% 0.19/0.42      (![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[42, 32])).
% 0.19/0.42  tff(44,plain,
% 0.19/0.42      (((~![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))) | ((~finite(A!29)) | (~finite(B!28)) | (~finite(C!27)) | finite(cartesian_product3(A!29, B!28, C!27)))) <=> ((~![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))) | (~finite(A!29)) | (~finite(B!28)) | (~finite(C!27)) | finite(cartesian_product3(A!29, B!28, C!27)))),
% 0.19/0.42      inference(rewrite,[status(thm)],[])).
% 0.19/0.42  tff(45,plain,
% 0.19/0.42      ((finite(cartesian_product3(A!29, B!28, C!27)) | (~finite(C!27)) | (~finite(B!28)) | (~finite(A!29))) <=> ((~finite(A!29)) | (~finite(B!28)) | (~finite(C!27)) | finite(cartesian_product3(A!29, B!28, C!27)))),
% 0.19/0.42      inference(rewrite,[status(thm)],[])).
% 0.19/0.42  tff(46,plain,
% 0.19/0.42      (((~![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))) | (finite(cartesian_product3(A!29, B!28, C!27)) | (~finite(C!27)) | (~finite(B!28)) | (~finite(A!29)))) <=> ((~![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))) | ((~finite(A!29)) | (~finite(B!28)) | (~finite(C!27)) | finite(cartesian_product3(A!29, B!28, C!27))))),
% 0.19/0.42      inference(monotonicity,[status(thm)],[45])).
% 0.19/0.42  tff(47,plain,
% 0.19/0.42      (((~![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))) | (finite(cartesian_product3(A!29, B!28, C!27)) | (~finite(C!27)) | (~finite(B!28)) | (~finite(A!29)))) <=> ((~![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))) | (~finite(A!29)) | (~finite(B!28)) | (~finite(C!27)) | finite(cartesian_product3(A!29, B!28, C!27)))),
% 0.19/0.42      inference(transitivity,[status(thm)],[46, 44])).
% 0.19/0.42  tff(48,plain,
% 0.19/0.42      ((~![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))) | (finite(cartesian_product3(A!29, B!28, C!27)) | (~finite(C!27)) | (~finite(B!28)) | (~finite(A!29)))),
% 0.19/0.42      inference(quant_inst,[status(thm)],[])).
% 0.19/0.42  tff(49,plain,
% 0.19/0.42      ((~![A: $i, B: $i, C: $i] : (finite(cartesian_product3(A, B, C)) | (~finite(C)) | (~finite(B)) | (~finite(A)))) | (~finite(A!29)) | (~finite(B!28)) | (~finite(C!27)) | finite(cartesian_product3(A!29, B!28, C!27))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[48, 47])).
% 0.19/0.42  tff(50,plain,
% 0.19/0.42      (finite(cartesian_product3(A!29, B!28, C!27))),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[49, 43, 30, 29, 28])).
% 0.19/0.42  tff(51,plain,
% 0.19/0.42      (finite(D!26)),
% 0.19/0.42      inference(and_elim,[status(thm)],[27])).
% 0.19/0.42  tff(52,plain,
% 0.19/0.42      (^[A: $i, B: $i] : refl((finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A))) <=> (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A))))),
% 0.19/0.42      inference(bind,[status(th)],[])).
% 0.19/0.42  tff(53,plain,
% 0.19/0.42      (![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A))) <=> ![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))),
% 0.19/0.42      inference(quant_intro,[status(thm)],[52])).
% 0.19/0.42  tff(54,plain,
% 0.19/0.42      (^[A: $i, B: $i] : trans(monotonicity(trans(monotonicity(rewrite((finite(A) & finite(B)) <=> (~((~finite(B)) | (~finite(A))))), ((~(finite(A) & finite(B))) <=> (~(~((~finite(B)) | (~finite(A))))))), rewrite((~(~((~finite(B)) | (~finite(A))))) <=> ((~finite(B)) | (~finite(A)))), ((~(finite(A) & finite(B))) <=> ((~finite(B)) | (~finite(A))))), ((finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B)))) <=> (finite(cartesian_product2(A, B)) | ((~finite(B)) | (~finite(A)))))), rewrite((finite(cartesian_product2(A, B)) | ((~finite(B)) | (~finite(A)))) <=> (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))), ((finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B)))) <=> (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))))),
% 0.19/0.42      inference(bind,[status(th)],[])).
% 0.19/0.42  tff(55,plain,
% 0.19/0.42      (![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B)))) <=> ![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))),
% 0.19/0.42      inference(quant_intro,[status(thm)],[54])).
% 0.19/0.42  tff(56,plain,
% 0.19/0.42      (![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B)))) <=> ![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B))))),
% 0.19/0.42      inference(rewrite,[status(thm)],[])).
% 0.19/0.42  tff(57,plain,
% 0.19/0.42      (^[A: $i, B: $i] : rewrite(((finite(A) & finite(B)) => finite(cartesian_product2(A, B))) <=> (finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B)))))),
% 0.19/0.42      inference(bind,[status(th)],[])).
% 0.19/0.42  tff(58,plain,
% 0.19/0.42      (![A: $i, B: $i] : ((finite(A) & finite(B)) => finite(cartesian_product2(A, B))) <=> ![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B))))),
% 0.19/0.42      inference(quant_intro,[status(thm)],[57])).
% 0.19/0.42  tff(59,axiom,(![A: $i, B: $i] : ((finite(A) & finite(B)) => finite(cartesian_product2(A, B)))), file('/export/starexec/sandbox/benchmark/theBenchmark.p','fc14_finset_1')).
% 0.19/0.42  tff(60,plain,
% 0.19/0.42      (![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B))))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[59, 58])).
% 0.19/0.42  tff(61,plain,
% 0.19/0.42      (![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B))))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[60, 56])).
% 0.19/0.42  tff(62,plain,(
% 0.19/0.42      ![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~(finite(A) & finite(B))))),
% 0.19/0.42      inference(skolemize,[status(sab)],[61])).
% 0.19/0.42  tff(63,plain,
% 0.19/0.42      (![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[62, 55])).
% 0.19/0.42  tff(64,plain,
% 0.19/0.42      (![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[63, 53])).
% 0.19/0.42  tff(65,plain,
% 0.19/0.42      (((~![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))) | ((~finite(D!26)) | finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27))))) <=> ((~![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))) | (~finite(D!26)) | finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27))))),
% 0.19/0.42      inference(rewrite,[status(thm)],[])).
% 0.19/0.42  tff(66,plain,
% 0.19/0.42      ((finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27)))) <=> ((~finite(D!26)) | finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27))))),
% 0.19/0.42      inference(rewrite,[status(thm)],[])).
% 0.19/0.42  tff(67,plain,
% 0.19/0.42      (((~![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))) | (finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27))))) <=> ((~![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))) | ((~finite(D!26)) | finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27)))))),
% 0.19/0.42      inference(monotonicity,[status(thm)],[66])).
% 0.19/0.42  tff(68,plain,
% 0.19/0.42      (((~![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))) | (finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27))))) <=> ((~![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))) | (~finite(D!26)) | finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27))))),
% 0.19/0.42      inference(transitivity,[status(thm)],[67, 65])).
% 0.19/0.42  tff(69,plain,
% 0.19/0.42      ((~![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))) | (finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27))))),
% 0.19/0.42      inference(quant_inst,[status(thm)],[])).
% 0.19/0.42  tff(70,plain,
% 0.19/0.42      ((~![A: $i, B: $i] : (finite(cartesian_product2(A, B)) | (~finite(B)) | (~finite(A)))) | (~finite(D!26)) | finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27)))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[69, 68])).
% 0.19/0.42  tff(71,plain,
% 0.19/0.42      (finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26)) | (~finite(cartesian_product3(A!29, B!28, C!27)))),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[70, 64, 51])).
% 0.19/0.42  tff(72,plain,
% 0.19/0.42      (finite(cartesian_product2(cartesian_product3(A!29, B!28, C!27), D!26))),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[71, 50])).
% 0.19/0.42  tff(73,plain,
% 0.19/0.42      ($false),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[72, 26])).
% 0.19/0.42  % SZS output end Proof
%------------------------------------------------------------------------------